Concrete placing equipment



Aug. 8, 1933. M. c. DE WOLFE CONCRETE PLACING EQUIPMENT ';Filed June 16,1930 5 Sheetshe 1 IN VEN TOR. MA Rh C. 05%;] 5.

A TTORNEYS.

By moon/r0 #Cb.

Aug. 8, 1933. 5 WOLFE 1,921,351

CONCRETE PLACING EQUIPMENT Filed June 16, 1930 5 Sheets-Sheet 2INVENTOR. MA/a/c O DEWOLFE.

' A TTORNEYS.

Patented Aug. 8, 1 933 t I I I I I I i l UNHTED STATES PATENT*OFFICE rf' I V 1,921,351 7 I v 3 7 CONCRETE PLACING EQUIPMENT Mark 0. DeWolferoakland, Calif. Application June 16, 1930. Serial No. 461,498

' 2-Cla ims. (Cl. 187- 95)v My invention relates to improvements in con-In carrying out my invention I provide atower crete placing equipment,and it consists in the indicated generally at 1 and of the shape showncombinations, constructions and arrangements in Figure- 1. Reference toFigure 2 showsthe hereinafter described and claimed. toweras beingcomposed of four legs 2, these legs- An object of my invention is toprovideconbeing made up of tubular sections 3 (see Figures.

' 'crete placing equipment which comprises parts 3 and 4) connectedtogether by leg. joints of the that can be formed into a tower, a boom,a matype shown in Figure 6 or of the type shown in chine, a gallusframe, etc., the partsbeing inter- Figure 7. f changeable so as to formstructures varying in The leg joint 4 shown'in Figure fi comprises 10height according to the type of work to be accoma body portion 5 havinga diameter equal to the plished. Part of the equipment consists in outerdiameter of the sectional legs 3; Two retracks that may be extended upalong the sides duced portions '6 (see Figure 6) are integral with orinterior of a tower, these tracks having a the body portion 5,,and-theseare receivable in smooth exterior surface throughout their entire theleg sections 3 as shown in Figure' i. If de-,

15- lengths even though they are made up of a numsired, the leg sections,3 may be provided with.

her of. sections. If desired, two towers may be openings 7 (seeFigure-4), and these will register erected and connected together whenheavy duty with openingso in thereduced portions .6 for. work is to bedone. receiving bolts 9 of the type shown in FigurelZ.

I also provide novel means for adjusting hop- The leg joint 4 alsocarries a lug 10 that extends 20- pers at different places on the towerand for proaway from the leg 2 as shown'in Figure 3, and viding tripsthat will causea bucket to dump into a guy wire 11 (see Figure 2) may beI passed the desired hopper. These trips or dumps may through'anopeningIZKseeFigure 6). in thelug be swung into an out-of-the-way position soas 10 and extend to alsupporting surface such as to permit the bucket tomove to the top ofthe the ground. or other object. In this way the 5-tower, as, for example, when it is desired to carry tower is braced. Itis obvious that the lugs 10 workmen to the top for inspection of thetower. may be lengthened so as to be attachable to a A still furtherobject lies in the fact that the supporting member such as a frameworkor the tie 'wires supporting the tower do not interfere like. Inthisevent the guy wires 11 could be dis-f with the tower top, and thispermits additional pensed with. e I l I sections to be added so as toincrease the height In Figure l I show theguy Wires as being se-. v,

of the tower as desired. I cured to every other section of thetower. Ihave other Objects n advantages W pp as denoted one sectionbythe letterA in Figure 1, thespecification proceeds, and the novel features and asmany sections as necessary maybe added of the invention will beparticularly pointed out to tl etovver. ,Legjoints 13 (see Figure -'7)are 5in the claims hereto annexed. f usedto connecttthe sections notemploying guy My i v i n is i u trat d i h a a yinei wires 11, it willbe noted that the leg joint 13 v drawings, in which: a is=identicaltofthe leg joint 6 except that the lug Figure 1 isfla side elevationofthe complete 10 is dispensed with. Corresponding parts will assembly,therefore be given like reference numerals, and 40' Figure 2 is ahorizontal section along the line afurther des'cription is not needed.

22 of Figure 1, Thefour legs 2. are disposed in foot members Figure 3 isan enlarged horizontal section of a 14 (see'Figure 1) andthese membershave tubucorner of the tower, lar-portions for receiving the legsections 3, and,

Figure 4 is a side elevation of Figure 3, if desired, they may havecentral-portions (not 45 Fi ures 5, 6 a d 7 are p pectiv ews of shown)entering the leg sections 3. .The legs 2 various parts of the equipment,are connected to each other by-channel irons 15 Y Fi u 8 is asectionalong t li 8 -8; of (seeFigures 2' and-3). ,The ends 16 of the than-1Figure 1, I I i v nel ironsl5 are bent as shown in'Figure 3, and

Fi u 9 a 0 a d and t p p n-views abolt- 17 is passed through theopenings in the v p v y D e ting two towers ends lfi and through anopening '18- (see Figures together, v 6 and 'ly in the joints 4-01 13 soas-to secure Figure 11 shows another memberforming a the channels 15 tothe legs 2. The channels in part of the tower, and M r reality aresecured to the portions5 of the joints Figure 12 illustrateshow thedifferent sections 4 and- 13 Lacingmembers consisting ofstruts -may bese ured togethe 7- dispQseddiag'cnaiuy1-afS-tsmWn R i channels 15 and 20by bolts 22 and 23. r

The same bolts 22 and 23 are used for supporting tracks. In Figure 2 Ishow five sets of tracks indicated by the letters B, C, D, E and F.These tracks are formed of tubular sections 24 and may be of the samesize as the leg sections 3 or of a smaller diameter. Track joints 25 ofthe shape shown in Figure 5 are disposed between adjacent track sections24 and support the sections as Well as hold them in alignment with eachother. It will be noted in Figure 5 that the track joint 25 has acentral portion 26 having the same outer diameter as the outer diameterof the track sections 24. Reduced portions 27 are used for enteringthe'tubular track sections. It will be seen that a smooth continuoussurface will extend along the entire length of the tracks because ofthis construction. The portion 26 has a if-shaped lug 28 that is securedto the channel irons 15 by the bolts 22 and 23 (see Figure 3).Additional bracing'members 29 may be provided if necessary,

.- and these extend from the lugs 28 to the bolts 17".

Various types of sliding equipment can be raised and lowered on thetracks B to F inclusive, and in Figure 1 I have shown a frame 30slidably carried by the track D. A hopper 31 is carried by the frame,and a boom 32 is also carried by the frame. If desired, acounter-balance 33 may be suspended from the boom, and a gravity chute34 may connect the hopper 31 with a chute 35' carried by thecounter-balance. The raising and lowering of the frame 30 on the track Dwill raise and lower this entire equipment.

As' a further illustration, I show a second hopper 36 similar to thehopper 31 adjustably carried by a'frame (not shown) which is slidable onthe track B. A chute 37 leads from this hopper to any place desired.

Within the tower I show a bucket hoist 38 that is guided by the track F.The particular type of bucket 39 carried by the hoist 38 is described inmy co-pending application on a Hoist bucket filedJune 16,- 1930, SerialNo. 461,497. Suihce it to say" that the bucket is tiltable to the rightor to the left in Figure 1 with respect to the support 33, and this isaccomplished by rollers- 40 that are receivable in arcuate grooves 41 intrips 42. The trips are pivotally carried by the hopper 36 at 43 forpermitting the trips to be swung into or out of operative position. Themovement of the platform 38 upwardly caused by the lifting of thesupporting bail 44 will cause the roller to enter the grooves 41 and todump the contents upon the bucket Will be swung into an uprightposition.

A similar double trip or dump may be provided for the hopper 31, nonebeing shown. All of thetrips may be swunginto inoperative position"ported at its base. can be constructed of the tubular sections 3 andabout their pivots 43 when it is desired to raise the bucket 39 to thetopof the tower. In Figure 8 I show ,a detail of the track F, theplatform 38, the bucket 39, and the bail 44. This figure illustrates howshoes 46 secured to the bail 44 slidably engage with the track F so asto guide the bucket and at the same time not interfere with theprojection 28.

When it is desired to secure two towers together so as to provide astructure which will withstand heavy duty, I provide connecting means asshown in Figures 9 and 13. The con-' necting means consists of two ofthe joints 4 secured to each other by their lugs 10. In Figure 9 I showa connecting strip 47 having cylindrical end portions 48'with reducedportions 49 designed to enter the tubular members 3. Figure 19 shows atop plan view of the same structure. The two towers can support sixexterior tracks and two interior tracks if desired. Tracks can also beplaced between the towers. In fact, a third tower is formed between theother two by this construction, and this third tower can be extendedabove the others to carry an elevatoror bucket.

It is nowthepractice-to'suspend load lines from the top mid-portion ofthe tower and have these load lines support gravity chutes,counterbalances, etc. t is impossible with this construction to add tothe height of the tower without first moving the load lines. In thepresent device I provide a joint 50 of the shape shown in Figure 11, andthis joint takes the place of joints 4 or 13. The joint 50'is preferablyplaced at the desired height in the tower, and it carries a pro jection51 normaily termed a saddle support, and in this support there isdisposed a half pipe or saddle 52 which in turn receives a' load line53, this load line carrying chutes etc. not shown.

Preferably at least two load lines 53 are used,

one being disposed on each side of the tower. A new section can beadded, and thiswill not interfere withthe load lines because, as alreadystated, they are disposed on the sides of the tower. If it is desired tolift the load lines to the top of the new section, joints 50 can beadded to the top of the section and'then the load lines lifted so as tobe supported by the topmost joints 50.

' The lacing members 19 are interchangeable, and'they may be of variouslengths for towers of different sizes. It is obvious that the tower 1can be used as a mast if the top and bottom of the tower are providedwith conical-shaped sections so as to permit the mast to be rotatablysup- It: is also obvious that a boom the joints 4, and that this boommay be'reinforo'edby cables extending from the lugs 10 of the joints 4to the ends of the boom. The boom may be made'in sections, and thesesections secured together by the joints 4. I

It will further be noted that the towers can be used for supportingrailroad tracks either passed through the towers or supported at thesides of the towers. In building dam structures the towers would beerected and spaced the required distance apart. The railroad trackswould be supported by the towers, and as the concrete was poured, thetowers would become embedded and form a part of the reinforcingstructure for the dam. As the height of the dam increased,- additionalsections could be added to the towers and the railroad tracks raised asneeded.

Although I have shown and described one embodiment of my invention,-itis to beunderstood smooth surfaces throughout their lengths.

2. A coupling for a sectional tubular track comprising a body having thesame diameter as the outer diameter of the tubing, said body havingintegral cylindrical portions whose axes coincide with each other andwith the body axis, the outer diameters of the cylindrical portionsbeing the same as the inner diameter of the tubing, and a laterallyextending integral supporting portion for the body having a thicknessfar smaller than the outer diameter of the tubing, whereby the greaterportion of the tubing and body can be;

utilized for guiding means.

MARK C. DE WOLFE.

